How

United and Continental Encourage Customers to go Green for Earth Day Using Mobile Boarding

4/18/2011

Company Donating up to $2 to Conservation International for Every Customer who Boards Using a PDA or Cell Phone

Chicago — United Continental Holdings,
Inc. (NYSE: UAL) today announced that for every customer who uses a mobile
boarding document on Earth Day, the company will donate $1 to help Protect an
Acre with its global nonprofit partner Conservation International (see terms and
conditions below). For customers who use the Continental Mobile App for Android®
or iPhone®, the company will double the contribution to $2. Conservation
International's Protect an Acre program works to curb tropical deforestation, a
leading cause of climate change, while preserving the livelihoods of local
communities and the natural habitats of threatened species.

"At the new United, we are taking responsible actions to reduce our impact on
the environment," said Toby Enqvist, vice president of environmental affairs and
security for United. "Using a mobile boarding pass is a tangible way our
customers can join us in our commitment to environmental and social
responsibility.""We greatly appreciate United and Continental's commitment
to contribute up to $2 to Conservation International's Protect an Acre program
for every customer who uses the paperless mobile boarding option on Earth Day,"
said Justin Ward, vice president in Conservation International's Center for
Environmental Leadership in Business.

More than 10 million customers have used their cell phone or PDA at 89
domestic and international airports equipped to accept mobile boarding passes
since the airlines introduced the program in 2007. United and Continental
customers have saved approximately 1,200 trees by opting to board using a mobile
device in lieu of a printed boarding pass.

Customers scheduled to travel on Friday, April 22 are encouraged to select
the mobile boarding pass delivery method when they check in for their flight.
For more information about the company's commitment to the environment and its
Earth Day promotion, visit united.com/eco-skies and continental.com/eco-skies.

About United Continental Holdings, Inc.

United Continental Holdings, Inc. (NYSE: UAL) is the holding company for both
United Airlines and Continental Airlines. Together with United Express,
Continental Express and Continental Connection, these airlines operate an
average of 5,820 flights a day to 373 airports on six continents from their hubs
in Chicago, Cleveland, Denver, Guam, Houston, Los Angeles, New York/Newark
Liberty, San Francisco, Tokyo and Washington, D.C.

United and Continental are members of Star Alliance, which offers 21,000
daily flights to 1,160 airports in 181 countries. United and Continental's more
than 80,000 employees reside in every U.S. state and in many countries around
the world.For more information about United Continental Holdings, Inc., go to UnitedContinentalHoldings.com. For more
information about the airlines, see united.com
and continental.com, and follow each company on
Twitter and Facebook.

Terms and conditions

United Continental Holdings will contribute to Conservation International's
Protect an Acre program as part of this promotion matching each use of mobile
boarding pass on Earth Day, Friday, April 22, 2011, with a $1 contribution and
$2 for each use of the Continental Mobile App for Android® or iPhone® up to a
maximum of $50,000 for the combined company representing both United and
Continental subsidiaries. Mobile boarding documents are sent directly to your
mobile device by e-mail for qualifying itineraries. Standard data rates apply.
Offer subject to change.